markgojs
Version:
Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams
157 lines (156 loc) • 8.18 kB
JavaScript
(function (factory) {
if (typeof module === "object" && typeof module.exports === "object") {
var v = factory(require, exports);
if (v !== undefined) module.exports = v;
}
else if (typeof define === "function" && define.amd) {
define(["require", "exports", "../release/go", "./SnapLinkReshapingTool"], factory);
}
})(function (require, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
/*
* Copyright (C) 1998-2019 by Northwoods Software Corporation. All Rights Reserved.
*/
var go = require("../release/go");
var SnapLinkReshapingTool_1 = require("./SnapLinkReshapingTool");
var myDiagram;
var myPalette;
function init() {
if (typeof window["goSamples"] === 'function')
window["goSamples"](); // init for these samples -- you don't need to call this
var $ = go.GraphObject.make; // for conciseness in defining templates
myDiagram =
$(go.Diagram, "myDiagramDiv", // must name or refer to the DIV HTML element
{
initialContentAlignment: go.Spot.Center,
// supply a simple narrow grid that manually reshaped link routes will follow
grid: $(go.Panel, "Grid", { gridCellSize: new go.Size(8, 8) }, $(go.Shape, "LineH", { stroke: "lightgray", strokeWidth: 0.5 }), $(go.Shape, "LineV", { stroke: "lightgray", strokeWidth: 0.5 })),
allowDrop: true,
"draggingTool.isGridSnapEnabled": true,
linkReshapingTool: $(SnapLinkReshapingTool_1.SnapLinkReshapingTool),
// when the user reshapes a Link, change its Link.routing from AvoidsNodes to Orthogonal,
// so that combined with Link.adjusting == End the link will retain its reshaped mid points
// even after nodes are moved
"LinkReshaped": function (e) { e.subject.routing = go.Link.Orthogonal; },
"animationManager.isEnabled": false,
"undoManager.isEnabled": true
});
// when the document is modified, add a "*" to the title and enable the "Save" button
myDiagram.addDiagramListener("Modified", function (e) {
var button = document.getElementById("SaveButton");
if (button)
button.disabled = !myDiagram.isModified;
var idx = document.title.indexOf("*");
if (myDiagram.isModified) {
if (idx < 0)
document.title += "*";
}
else {
if (idx >= 0)
document.title = document.title.substr(0, idx);
}
});
// Define a function for creating a "port" that is normally transparent.
// The "name" is used as the GraphObject.portId, the "spot" is used to control how links connect
// and where the port is positioned on the node, and the boolean "output" and "input" arguments
// control whether the user can draw links from or to the port.
function makePort(name, spot, output, input) {
// the port is basically just a small transparent square
return $(go.Shape, "Circle", {
fill: null,
stroke: null,
desiredSize: new go.Size(7, 7),
alignment: spot,
alignmentFocus: spot,
portId: name,
fromSpot: spot, toSpot: spot,
fromLinkable: output, toLinkable: input,
cursor: "pointer" // show a different cursor to indicate potential link point
});
}
myDiagram.nodeTemplate =
$(go.Node, "Spot", { locationSpot: go.Spot.Center }, new go.Binding("location", "loc", go.Point.parse).makeTwoWay(go.Point.stringify), { selectable: true }, { resizable: true, resizeObjectName: "PANEL" },
// the main object is a Panel that surrounds a TextBlock with a Shape
$(go.Panel, "Auto", { name: "PANEL" }, new go.Binding("desiredSize", "size", go.Size.parse).makeTwoWay(go.Size.stringify), $(go.Shape, "Rectangle", // default figure
{
portId: "",
fromLinkable: true, toLinkable: true, cursor: "pointer",
fill: "white" // default color
}, new go.Binding("figure"), new go.Binding("fill")), $(go.TextBlock, {
font: "bold 11pt Helvetica, Arial, sans-serif",
margin: 8,
maxSize: new go.Size(160, NaN),
wrap: go.TextBlock.WrapFit,
editable: true
}, new go.Binding("text").makeTwoWay())),
// four small named ports, one on each side:
makePort("T", go.Spot.Top, false, true), makePort("L", go.Spot.Left, true, true), makePort("R", go.Spot.Right, true, true), makePort("B", go.Spot.Bottom, true, false), {
mouseEnter: function (e, node) { showSmallPorts(node, true); },
mouseLeave: function (e, node) { showSmallPorts(node, false); }
});
function showSmallPorts(node, show) {
node.ports.each(function (port) {
if (port.portId !== "") { // don't change the default port, which is the big shape
port.fill = show ? "rgba(0,0,0,.3)" : null;
}
});
}
myDiagram.linkTemplate =
$(go.Link, // the whole link panel
{ relinkableFrom: true, relinkableTo: true, reshapable: true, resegmentable: true }, {
routing: go.Link.AvoidsNodes,
adjusting: go.Link.End,
curve: go.Link.JumpOver,
corner: 5,
toShortLength: 4
}, new go.Binding("points").makeTwoWay(),
// remember the Link.routing too
new go.Binding("routing", "routing", go.Binding.parseEnum(go.Link, go.Link.AvoidsNodes))
.makeTwoWay(go.Binding.toString), $(go.Shape, // the link path shape
{ isPanelMain: true, strokeWidth: 2 }), $(go.Shape, // the arrowhead
{ toArrow: "Standard", stroke: null }));
load(); // load an initial diagram from some JSON text
var link = myDiagram.links.first();
if (link)
link.isSelected = true;
// initialize the Palette that is on the left side of the page
myPalette =
$(go.Palette, "myPaletteDiv", // must name or refer to the DIV HTML element
{
maxSelectionCount: 1,
nodeTemplateMap: myDiagram.nodeTemplateMap,
model: new go.GraphLinksModel([
{ text: "Start", figure: "Circle", fill: "green" },
{ text: "Step" },
{ text: "DB", figure: "Database", fill: "lightgray" },
{ text: "???", figure: "Diamond", fill: "lightskyblue" },
{ text: "End", figure: "Circle", fill: "red" },
{ text: "Comment", figure: "RoundedRectangle", fill: "lightyellow" }
])
});
}
exports.init = init;
// Show the diagram's model in JSON format that the user may edit
function save() {
saveDiagramProperties(); // do this first, before writing to JSON
document.getElementById("mySavedModel").value = myDiagram.model.toJson();
myDiagram.isModified = false;
}
exports.save = save;
function load() {
myDiagram.model = go.Model.fromJson(document.getElementById("mySavedModel").value);
loadDiagramProperties();
}
exports.load = load;
function saveDiagramProperties() {
myDiagram.model.modelData.position = go.Point.stringify(myDiagram.position);
}
// Called by "InitialLayoutCompleted" DiagramEvent listener, NOT directly by load()!
function loadDiagramProperties() {
// set Diagram.initialPosition, not Diagram.position, to handle initialization side-effects
var pos = myDiagram.model.modelData.position;
if (pos)
myDiagram.initialPosition = go.Point.parse(pos);
}
});